In September 2012, its subsidiary, Unit Petroleum Company, acquired certain oil and natural gas assets from Noble Energy (NBL), increasing its proved reserves 38% from year-end 2011, and sold certain of its Bakken properties.

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Apache Corp. is an independent natural gas, crude oil and natural gas liquids company with assets in North America, Canada, Western Australia, Egypt, Poland and China.

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Announced sales to date include all oil and gas producing assets in the United States Rockies, some natural gas properties in Western Canada, all assets in the Netherlands, and all Trinidad and Tobago assets.

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